./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:57:49,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:57:49,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 06:57:49,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:57:49,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:57:49,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:57:49,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:57:49,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:57:49,177 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:57:49,177 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:57:49,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:57:49,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:57:49,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:57:49,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:57:49,177 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:57:49,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:57:49,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:57:49,179 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:57:49,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:57:49,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:57:49,180 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1 [2025-03-17 06:57:49,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:57:49,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:57:49,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:57:49,439 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:57:49,439 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:57:49,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i [2025-03-17 06:57:50,667 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8467482e3/84036e0822124ec29c52ae69deeabc78/FLAG9d80cca28 [2025-03-17 06:57:51,186 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:57:51,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i [2025-03-17 06:57:51,236 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8467482e3/84036e0822124ec29c52ae69deeabc78/FLAG9d80cca28 [2025-03-17 06:57:51,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8467482e3/84036e0822124ec29c52ae69deeabc78 [2025-03-17 06:57:51,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:57:51,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:57:51,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:57:51,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:57:51,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:57:51,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:57:51" (1/1) ... [2025-03-17 06:57:51,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e4b354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:51, skipping insertion in model container [2025-03-17 06:57:51,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:57:51" (1/1) ... [2025-03-17 06:57:51,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:57:51,493 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i[4495,4508] [2025-03-17 06:57:51,500 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i[4555,4568] [2025-03-17 06:57:51,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:51,928 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:51,928 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:51,929 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:51,929 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:51,940 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:51,941 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:51,942 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:51,943 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,458 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:57:52,604 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:57:52,615 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i[4495,4508] [2025-03-17 06:57:52,616 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i[4555,4568] [2025-03-17 06:57:52,652 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,652 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,652 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,653 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,653 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,658 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,658 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,658 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2025-03-17 06:57:52,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,762 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:52,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2025-03-17 06:57:52,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:57:52,988 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:57:52,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52 WrapperNode [2025-03-17 06:57:52,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:57:52,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:57:52,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:57:52,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:57:52,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,122 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2025-03-17 06:57:53,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:57:53,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:57:53,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:57:53,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:57:53,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,171 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,246 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 13, 40, 6]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 5, 8, 0]. The 493 writes are split as follows [0, 257, 232, 0, 2, 2]. [2025-03-17 06:57:53,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,284 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:57:53,319 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:57:53,319 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:57:53,319 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:57:53,320 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (1/1) ... [2025-03-17 06:57:53,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:57:53,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:57:53,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 06:57:53,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 06:57:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2025-03-17 06:57:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2025-03-17 06:57:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 06:57:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 06:57:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 06:57:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 06:57:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 06:57:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 06:57:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-17 06:57:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:57:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 06:57:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 06:57:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:57:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 06:57:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 06:57:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 06:57:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 06:57:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 06:57:53,636 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:57:53,638 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:57:53,691 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 06:57:53,730 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 06:57:53,773 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7767: havoc #t~mem828; [2025-03-17 06:57:53,787 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 06:57:53,833 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7353: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2025-03-17 06:57:53,853 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 06:58:01,155 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-17 06:58:01,281 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2025-03-17 06:58:01,281 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:58:01,291 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:58:01,294 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:58:01,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:58:01 BoogieIcfgContainer [2025-03-17 06:58:01,294 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:58:01,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:58:01,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:58:01,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:58:01,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:57:51" (1/3) ... [2025-03-17 06:58:01,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a1606d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:58:01, skipping insertion in model container [2025-03-17 06:58:01,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:52" (2/3) ... [2025-03-17 06:58:01,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a1606d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:58:01, skipping insertion in model container [2025-03-17 06:58:01,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:58:01" (3/3) ... [2025-03-17 06:58:01,302 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness_negated.i [2025-03-17 06:58:01,314 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:58:01,315 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_c_str_harness_negated.i that has 11 procedures, 132 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 06:58:01,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:58:01,372 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35e97e9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:58:01,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:58:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 86 states have internal predecessors, (106), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-17 06:58:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-17 06:58:01,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:58:01,385 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:58:01,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:58:01,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:58:01,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1519726599, now seen corresponding path program 1 times [2025-03-17 06:58:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:58:01,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680752470] [2025-03-17 06:58:01,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:58:01,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:59:12,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-17 06:59:12,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-17 06:59:12,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:59:12,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:59:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-17 06:59:13,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:59:13,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680752470] [2025-03-17 06:59:13,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680752470] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:59:13,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936891419] [2025-03-17 06:59:13,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:59:13,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:59:13,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:59:13,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:59:13,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process